Automatic machine-vise.



J. R. LONG.

AUTOMATIC MACHINE VISE.

APPLICATION FILED Nov. I2` I9I1 Patentd Apr. 8, 19H

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J. R. LONG.

AuToMATxC MACHINE vlsE,

APPLICATION FILED NOV. 12,'*l9l7 1,299,488. Patnted .8,1919.

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JOHN R. LONG, 0F EAST AKRON, OHIO.

AUTOMATIC MACHINE-VISIE.

To all whom t may concern.'

Be it lmown that I, J oHN R. LONG, a citizen of the United States,residing at East Akron, in the county of Summit andState of Ohio, haveinvented certain new and useful Improvements in Automatic Machine-Vises, of which the following is a specication.

This invention pertains to an improvement in automatic machine vises,all sub-1 stantially as shown and described and particularly pointed outin the claims.

In the accompanying drawings, Figure l is a side elevation of the viseresting upon a suitable support and showing a drill supporting arm overthe same and a drill therein above the open jaws of the vise. Fig. 2 isa plan view of the vise fixed on its base. Fig. 3 is an enlargedlongitudinal section of the vise and Fig. 4 is a'cross section on line 44, Fig. 3. Fig. 5 is a rear elevation of the vise, showing the basetherewith partially broken away. Fig. 6 is a bottom view of the postsupporting the vise in the base. Fig. 7 is a detail of the handleadapted to engage and rotate the locking screw for the aws.

3 In the Aconstruction and adaptation of the vise as thus shown I employa base b adapted to be fixed on a vbottom support of any suitable kindby bolts or otherwise and which has a series of radial vslots 2, ortheirl equivalent in holes, channels or grooves and in which I engageand lock the said post h. The vise members are supported together onthis post and adapted to be rotated and clamped thereon. The said postor trunnion is cylindrical and has a flange 3` about its bottom restingupon the base b and lugs A oppositely on its bottom adapted to enter anyone of the slots or channels 2 according to the vposition chosen for thevise and a bore through its center for the fastening screw 5.' The lugs4c serve to prevent rotaber J and the movable jaw or member J i whichare-also referred to as inner and outer aws or members, and the saidmain or xed es law has a body or shank with a rectangular Speccation ofLetters Patent.

' to either side relatively to Patented Apr. 8, 1919.

Application filed November 12, 1917. Serial No. 201,413.

opening axially front to rear through the same adapted to receive thecorrespondinglyshaped shank 7 of the outer jaw, and said body isprovided with a lateral extension 8 at its side and outside the plane ofsaid jaws having a circular vertical bearing fitting over and seatedupon the post h, Fig. 4, and

-upon which the said jaw is both rotatable horizontally and adapted tobe clamped whenv in use.

Especialattention is called to the lateral extension 8 forming a pivotpoint about which the jaws are rotatable :for the reason that by thisnovel construction of the fixed jaw I am enabled to obtain engagementwith the supporting base entirely outside of the jaw members but on aplane therewith horizontally, and at the same time am enabled toautomatically .clamp said post and lock said members against rotationwhen the operating-screw is tightened. To this end the said jaw member-Jis provided with A a sawed slot or slit 10 across the same bodily fromits side and through from top to bottom and through one side of thevertical bearing or opening in extensiony 8V sleeved overv post h, andthe shank or body of said jaw has a cylindrical nut n set into the samefrom above and provided with a threaded hole transversely at its middleto engage the operating screw S therein. The said nut is seated on itsupset end and removable when the screw is withdrawn. This brings slot orslit 10 on which the body is split or divided between the end bearing ofthe operating screw S on the outer-jaw J and the said nut, and itfollows that closure of slot 10 with clamping effect on post it mustoccur when said screw S is tightened. Then upon release of screw'S theclamp is relaxed and the jaws are rotatable together on said post thedrill or tool d above.

The screw S has a collar c fixed thereon and the bushing 15 at the frontthereof is fixed in the jaw so that the screw is held permanently inworking position.

In the operation of this vise there is liable to be considerable downpressure upon the jaws, and in order to relieve the jaws of suchpressurein their operating portions I have provided the jaw J with a lug orprojection 9 at its bottom which comes down at least even with theflange 3 on the post and is adapted to bear directly upon base Z1,

and said projection also extends somewhat forward to provide a moredirect under support for the jaw J.

The handle or wrench 16 is adapted to engage with and rotate theoperating screw.

The said lug 9 may have any suitable shape, and in this instanceprojects tor-ward somewhat so as to serve also and directly as a mediumfor taking lthe .down pressure that comes on the outer jaw also; Bymeans of the said-lug the operating strain is taken away from the -post7i andthe parts con- "nected therewith and a firm support is given tothe jaws from beneath kthe same to withstand possi-ble ydown pressure.rThe outer movable j a-W J is also provided with Va boss 14 vand anadjustable rest screw 13 at its bottom, whereby this movable part of thevise may be directly seated upon the table Z)V and sustained against thedown thrust and pressure upon the work held by the jaws, 4and which workit will be noted is vheld olfcen-ter to the pivot post fh.

Base in the present showing, comprises a rotatable table 'o having avertical aXis and shaft ladapted to be clamped in a clamping arm 18,IiXednto support said table, and the post h for the vise is adapted tobeselcure'dfradially orf-center :to this axis. ln this way the .tableand vise may be rotated together relatively 'to the operating tool aland vthe work introduced into or removed from the jaws on any :desiredradial lines. lt 4often occurs that the :operations are merely:duplicated on similar work and it is then :desirable to fiiX .the viseVin .zr-stationary .po-

sition on post it and not permit it to be unclamped .upon retiring thejaw J each time :thefwork is released and removed and a new pieceinserted. Therefore, .the split portions of 'jaw member J are eachprovided with Lears 11' through which a short clamping screw or collarbolt12 extends, only one ear however being-screw-threaded togrip the*.boltand the other .ear providing a sliding fit for. the fbolt, wherebya permanent clamping lof" the jawlmember J upon post li'may be obtainedwhenever vsuch fixed relationship may be denied without dependence uponthe clamping effect otherwise obtainable byscrewS.

What I claim is:

1. A. machine vise comprising a' main jaw having labody provided 'with atubular vertical ibearing at its side Yand split across said ,body-intosaid bearing, and ,a post over which said bearing isV seated, ay nut inysaid body behind said isplit, a. movable jaw in ,said :main 'jaw .andan operating screw through .the saine engaged in said nut, whereby when.the screw is tightened the parts are automatically clampedon said post.

Q. A machine vise asdescribed, comprising a post, a mam jaw having anextension Vat its side provided with a bearing sleeved upon said postand having a split across its body intosaid bearing, a movable jawhavpermitting clampingof said body upon saidV post through the clampingpressure .placed.

upon the work held between the .jaws,nand a clamping device for thesplit portions of said body-'permitting clamping yeliects to be-obtained upon the post independently of Isaid operatingl screw.

4. ik machine Vvise having an inner jaw member provided vwith a bodyhaving an axial opening through the same and a ytubular support at one'side of said V.body and having a split transversely through. .said bodyinto said support and ears on the 011tside thereof on opposite sides of:said split, in combinationfwith 'a .nut seated in'fsaid body behindsaidsplit,v a slidable jaw .Shaving @a shank extending into saidibodyand-.an

operating screw kthrough the Vsame engaged l.in said nut, a 4post onwhich said tubularstlp port is seated and .a screwxthrough-said earsoutside said post adapted to clam-p the sup- Vport on lsaid post .andlockthe vise independently of the operating screw. 5. A machine viseasdescribed comprising an inner jaw member having a tubular :bearing atlone side of the -body ithereof and-split transversely into said`bearing andy having a downward extension at :its :bottom beneath Vthe.jaw thereon vand adapted to take the downward pressure .upon the viseand a' base for lthe vise in supporting relations t0 said extension, anlouter jaw `slidably mounted insaid inner `j aw member, an operatingscrewtherefor and a nut engaged by said screw and located behind thesaidtransverse split, and the said outer jaw having an .adjustable supportadapted ito rest ori-said base, whereby when the operating Y screwtightens the work in thejawsthe ,said'jaws are clamped on the post `andthe downpressure on both jaws is sustained. l

' Signed at Cliwelandy in ,the..countyof -Cuyahoga, and State of-.Ohio,this2ith day of October, 1917.V

JoiiN n. Lol-iro.

y'Liopes-of1zhis patent may be obtainedfor. Vfive cents each, byaddressing the ,Cpinznissonierr eflatents, Washingtonrn? j 'Y Y l

